AMD64 Linux Syscall Table

May 18, 2026

Contents

Calling Convention
Most Used Table
Table

Compiled from Linux 7.0.14 headers

Calling Convention

Syscall NR	return	arg0	arg1	arg2	arg3	arg4	arg5
`rax`	`rax`	`rdi`	`rsi`	`rdx`	`r10`	`r8`	`r9`

Most Used Table

Table

Article	NR	syscall name	rax	rdi	rsi	rdx	r10	r8	r9
Link	0	`read`	`0x00`	`unsigned int fd`	`char *buf`	`size_t count`	`-`	`-`	`-`
Link	1	`write`	`0x01`	`unsigned int fd`	`const char *buf`	`size_t count`	`-`	`-`	`-`
-	2	`open`	`0x02`	`const char *filename`	`int flags`	`umode_t mode`	`-`	`-`	`-`
-	3	`close`	`0x03`	`unsigned int fd`	`-`	`-`	`-`	`-`	`-`
-	4	`stat`	`0x04`	`const char *filename`	`struct __old_kernel_stat *statbuf`	`-`	`-`	`-`	`-`
-	5	`fstat`	`0x05`	`unsigned int fd`	`struct __old_kernel_stat *statbuf`	`-`	`-`	`-`	`-`